Improvement in cotton-presses



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ELPETERS, FHOTO-LITHQGRAPHER. WASHINGTON. D C,

PATENT QFFIoE.

LARNED S. BEARGE, OF HOUSTON, TEXAS.

IMPROVEMENT IN COTTON-PRESSES.

Specification forming part of Letters Patent N 0- 169,763, dated November 9, 1875; application filed November 2, 1875.

To all whom it may concern:

Be it known that I, LARNED S. BEARCE, of Houston, Harris county, Texas, have invented certain new and useful Improvements in Presses, of which the following is a specification:

This invention relates to presses for pressing cotton and other substances.

My improvements can best be explained and V understood by reference to the accompanying drawing, in which- Figure 1 is a perspective view, and Fig. 2 is avertical central section, of a press embodying said improvements.

A is the frame of the press. and-left screw, and a a b b are the two sets of toggle-arms. The upper arms, at their upper ends, are hung on a pivot, c, and at their lower ends are jointed each to a screw-nut, d or c, olntlie screw B. Thelower arms, at their lower ends, are connected by a pivot, f, to a kn tickle-piece, which is connected to the platen O, as hereinafter described, and at their upper ends are jointed each to the nut 61 or e. The screw is rotated by a handle, g, or other suitable means. Under this arrangement it will be noted that the working parts are placed in diamond shape, and that they hang on the upper joint or pivot c. Sliding rods or harsh are employed to prevent the working parts-that is, the toggle-arms and screwfrom tilting. These rods may be variously arranged. 1n the present instance they are attached to the knuckle piece or block 13 of the lower joint of the toggle, and extend up B is the rightthrough guide-holes in the top of the press. The lower pivot or jointfis in the knucklepiece 'i, and to this piece 2' the platen'is connected by a balland-socket or universal joint, j, as seen in Fig. 2, which will permit the platen a tilting movement in any direction independent of the toggle-levers and screw.

Under the arrangement above described of the toggle-levers and screw, I obtain all the force and directness of a single screw and the power of the four levers, and the ball-andsocket connection between these parts and the platen renders this arrangement feasible, since thereby the platen is self-adjusting under pressure, and all injurious strain on the joints is removed.

It will also be noted as adistinguishing feature of this arrangement that the toggle-arms, at the points where'they converge in the line of the pressure, meet, and are hung on one and the same axis or pivot. 1

I do not here claim, broadly, a toggle-press in which the arms are combined with aplaten selfadj ustable under pressure, for I have made that the subject of aseparate application; but

What I do claim, and desire to secure by Letters Patent, is

1. In a press for pressing cotton and other substances, the combination, with toggle levers or arms, and a rightaml-left screw, arranged together substantially as described, of a platen connected with the toggle-arms by a ball'and-socket or equivalent joint, substantially as and for the purposes set forth.

2. The combination of the toggle levers or arms and right-and-left screw, arranged together as described, the sliding guide rods or bars, and the platen, connected. with the toggle-levers by a ball-aud-socket or equivalent joint, substantially as set forth.

In testimony whereof I have hereunto signed my name this 2d day of November, A. D. 1875.

EWELL A. DicK, HENRY R. ELLIOTT. 

